Home / 51,426.79-70,961.88-28,764.61

Finding the Fourth Proportional to 51,426.79, 70,961.88 and 28,764.61

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Solution

The fourth proportional to 51,426.79, 70,961.88 and 28,764.61 is: 39,691.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,426.79 : 70,961.88 = 28,764.61 : x
  2. Step 2: Convert to fraction form
    51,426.79/70,961.88 = 28,764.61/x
  3. Step 3: Cross multiply
    51,426.79x = 70,961.88 × 28,764.61
  4. Step 4: Simplify right side
    51,426.79x = 2,041,190,803.07
  5. Step 5: Solve for x
    x = 2,041,190,803.07/51,426.79
  6. Step 6: Final answer
    x = 39,691.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.